The manual covers many very helpful subjects, BUT, the manual does not deal with the complicated process of gaining access to the failed part. In my immediate instance, I have problems with the rear heater which is covered by trim panels. Removal of the trim panels is not covered and it is very easy to do severe, unrecoverable, damage to these panels. That being said, I am very satisfied with the general content of the manuals and as soon as I can locate a publication that deals with the removal of this, and other, trim panels, I will be off to the races.